JPS6222009B2 - - Google Patents
Info
- Publication number
- JPS6222009B2 JPS6222009B2 JP56070512A JP7051281A JPS6222009B2 JP S6222009 B2 JPS6222009 B2 JP S6222009B2 JP 56070512 A JP56070512 A JP 56070512A JP 7051281 A JP7051281 A JP 7051281A JP S6222009 B2 JPS6222009 B2 JP S6222009B2
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- stator
- hub
- coil spring
- load
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
- F16D27/10—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings
- F16D27/105—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with a helical band or equivalent member co-operating with a cylindrical coupling surface
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
【発明の詳細な説明】 本発明はスプリングクラツチに関する。[Detailed description of the invention] The present invention relates to a spring clutch.
従来のスプリングクラツチは第１図に示すごと
く軸受４により回転自在に支持され、Ｖ溝２を有
する駆動部１の端面に対向して配置したアーマチ
ユア８と負荷軸６に嵌挿されたハブ７に先端を係
合したコイルバネ９を有し、負荷機械のフランヂ
部５に固定され前記駆動部１の断面コ字型環状溝
に収納された電磁石３により構成されている。 The conventional spring clutch is rotatably supported by a bearing 4 as shown in FIG. The electromagnet 3 has a coil spring 9 engaged at its tip, is fixed to a flange 5 of a load machine, and is housed in an annular groove having a U-shaped cross section in the drive section 1.
前記従来例のクラツチにおいて駆動部１が、外
部動力（図示せず）によりＶ溝２を経て回転され
ているとき、電磁石３への通電により駆動部１の
端面にアーマチユア８が吸収され摩擦係合しなが
らコイルバネ９を巻締める動作を始める。 In the conventional clutch, when the drive section 1 is rotated through the V-groove 2 by an external power (not shown), the armature 8 is absorbed by the end surface of the drive section 1 by energization of the electromagnet 3, resulting in frictional engagement. While doing so, the action of tightening the coil spring 9 begins.
コイルバネの他の一端は前記ハブ７に係合さ
れ、軸６には負荷が掛つているためコイルバネ９
は、駆動部１の先端円筒部とハブ７とに巻付き、
これらを一体回動させる。 The other end of the coil spring is engaged with the hub 7, and since a load is applied to the shaft 6, the coil spring 9
is wrapped around the cylindrical end of the drive unit 1 and the hub 7,
Rotate these together.
上記従来例では連結回動中の負荷変動、例えば
自動車用空調機の圧縮機等の場合、回転角により
負荷所要トルクが異なる脈動負荷であることおよ
び、自動車のエンヂンを動力源として用いる関係
上、急激な加速、減速が走行条件により頻繁に行
なわれ、その都度、駆動側速度が著るしく変動す
る。このような変動、脈動の度ごとに負荷機械の
軸６に固定されたハブ７は負荷機械側の変動トル
クと慣性に呼応し、一方コイルバネ９の他の一方
を係合するアーマチユア８はＶ溝２より、急変す
るエンヂンからの変化に従つてその回転速度を脈
動、変動させるため、コイルバネ９は両端からの
影響をもろに受け、弛張動作をくり返すことにな
る。従つて一体回動しているハブ７の円筒部と、
駆動部１の先端円筒部が前記コイルバネ９の締付
作用のユルミによりスリツプを発生し、異常発
熱、異常摩耗を促進する原因となつていた。ま
た、従来例ではクラツチの連結動作において、駆
動部１の端面とアーマチユア８の摩擦係合部、コ
イルバネ９と駆動部１の円筒およびハブ７の摩擦
係合部の２カ所を有しており、特に磁気回路を構
成する電磁石３の継鉄部と駆動部１およびアーマ
チユア８は良磁性材で構成されるため、その硬度
を高く望めず、連結の度毎あるいは前記異常スリ
ツプの度ごとに摩耗を促進させ著るしく寿命を短
縮すると言う欠点を有しており、また前記磁気材
料および磁路の構成の方法によつては、ヒステリ
シスの影響を受け、クラツチ解放時、アーマチユ
アの復帰動作がわるくコイルバネ９の不完全復帰
による不完全摩擦係合が発生し、異常摩耗を起こ
すと同時に負荷機械の軸を折損するに及ぶ波動衝
撃を発生する等多くの欠点を有していた。 In the above-mentioned conventional example, the load fluctuates during connection rotation, for example, in the case of a compressor for an automobile air conditioner, the load is a pulsating load whose required torque varies depending on the rotation angle, and because the automobile engine is used as the power source, Rapid acceleration and deceleration are frequently performed depending on the driving conditions, and each time the speed on the driving side fluctuates significantly. Every time such fluctuations and pulsations occur, the hub 7 fixed to the shaft 6 of the loaded machine responds to the fluctuating torque and inertia of the loaded machine, while the armature 8 that engages the other side of the coil spring 9 is connected to the V-groove. 2, since its rotational speed pulsates and fluctuates in accordance with the sudden changes from the engine, the coil spring 9 is affected by both ends and repeats the relaxing action. Therefore, the cylindrical portion of the hub 7 that rotates together,
The cylindrical end of the drive unit 1 has been subject to slippage due to the tightening action of the coil spring 9, causing abnormal heat generation and abnormal wear. In addition, in the conventional example, in the coupling operation of the clutch, there are two places: a friction engagement part between the end face of the drive part 1 and the armature 8, and a friction engagement part between the coil spring 9 and the cylinder of the drive part 1 and the hub 7. In particular, since the yoke part of the electromagnet 3, the drive part 1, and the armature 8 that make up the magnetic circuit are made of good magnetic materials, their hardness cannot be expected to be high, and they wear out every time they are connected or every time the abnormal slip occurs. However, depending on the magnetic material and the method of configuring the magnetic path, the coil spring may be affected by hysteresis, making it difficult for the armature to return when the clutch is released. This has many drawbacks, such as incomplete frictional engagement due to the incomplete return of the shaft, which causes abnormal wear and generates a wave impact that can break the shaft of the loaded machine.
本発明は上記従来例の欠点に鑑みてなされたも
ので、スプリングクラツチの長所を活用し、負荷
変動に影響されない安定した機構のクラツチを提
供することにある。 The present invention has been made in view of the above-mentioned drawbacks of the prior art, and it is an object of the present invention to utilize the advantages of a spring clutch to provide a clutch with a stable mechanism that is not affected by load fluctuations.
次に本発明の実施例を図面とともに説明する。
尚、前記従来例の構成部品と共通する部分の説明
は省略し、同一部材は同一番号を使用する。 Next, embodiments of the present invention will be described with reference to the drawings.
Note that explanations of parts common to those of the conventional example will be omitted, and the same numbers will be used for the same members.
第２図において、負荷機械５に固定され、巻線
を収納してなる固定子１３と、円周方向に分割さ
れた多極の磁極を着磁した永久磁石からなるロー
ター１１が対面し、前記ローター１１は固定子１
３のフランヂ延長部に軸受４を介して回動自在に
嵌合されている。負荷軸６にはキー１２を挿入し
てなるハブ７と軸受４を介してプーリー２をよ
び、前記ローター１１に一端を係合し、他端をプ
ーリー２に係合されたコイルバネ９の外周を覆う
バネガイド１０が嵌装固定されている。 In FIG. 2, a stator 13 fixed to a load machine 5 and containing windings and a rotor 11 made of a permanent magnet magnetized with multiple magnetic poles divided in the circumferential direction face each other. Rotor 11 is stator 1
It is rotatably fitted to the flange extension of No. 3 via a bearing 4. A pulley 2 is connected to the load shaft 6 through a hub 7 in which a key 12 is inserted and a bearing 4, and the outer periphery of a coil spring 9 is connected to the rotor 11 at one end and the other end is engaged to the pulley 2. A covering spring guide 10 is fitted and fixed.
前記固定子１３は、円周方向にローター１１の
磁極数の偶数倍に分割されて巻回されたコイル
が、それぞれのコイルの巻始め端と隣接コイルの
巻終り端を接続し、２本の口出線（図示せず）に
接続されている。 The stator 13 has coils that are divided and wound in an even number multiples of the number of magnetic poles of the rotor 11 in the circumferential direction, and the winding start end of each coil is connected to the winding end end of an adjacent coil. It is connected to a lead wire (not shown).
固定子１３の空隙部に対面して配置した前記ロ
ーター１１は円周方向に分割された状態で複数極
の着磁がされている。この状態に於いて、ロータ
ー１１が回転することにより、静止している前記
固定子１３の各々のコイルはローター１１の複数
極の磁束の通過による電位を発生する。 The rotor 11, which is disposed facing the gap of the stator 13, is divided in the circumferential direction and magnetized into a plurality of poles. In this state, as the rotor 11 rotates, each coil of the stationary stator 13 generates a potential due to the passage of the magnetic flux of the plurality of poles of the rotor 11.
今、固定子１３のコイル端を前記２本の口出線
で短絡した場合、ローター１１の磁束により固定
子１３のコイルには環流する電流が流れ、この電
流による固定子１３の磁束φ１が発生する。この
磁束φ１は、ローター１１の磁極の極性と常に逆
の極性であるため、固定子に発生した磁束はロー
ター１１の磁束φ２と引き合い、ローター１１を
抱束する力が作用し、ローター１１に係合された
コイルバネ９を巻締め、減径状態となりながら外
部動力により回動し、ハブ７に動力を伝える。 Now, if the ends of the coils of the stator 13 are short-circuited by the two lead wires, a circulating current flows through the coils of the stator 13 due to the magnetic flux of the rotor 11, and the magnetic flux φ 1 of the stator 13 due to this current is Occur. Since this magnetic flux φ 1 always has a polarity opposite to the polarity of the magnetic pole of the rotor 11, the magnetic flux generated in the stator attracts the magnetic flux φ 2 of the rotor 11, a force that holds the rotor 11 acts, and the rotor 11 The coil spring 9 engaged with is tightened and rotated by external power while being reduced in diameter, transmitting the power to the hub 7.
上記構成の実施例において、プーリー２が外部
動力により回動しているとき、軸受４を介してバ
ネカバー１０、コイルバネ９およびコイルバネ９
の先端に係合されたローター１１は一体回動す
る。この際、固定子１３は無通電、あるいは開路
状態であるためローター１１との磁気誘導は発生
せず、従つてコイルバネ９はねじり応力を受けな
い。 In the embodiment with the above configuration, when the pulley 2 is rotating due to external power, the spring cover 10, the coil spring 9, and the coil spring 9 are connected to each other via the bearing 4.
The rotor 11 engaged with the tip rotates integrally. At this time, since the stator 13 is not energized or in an open state, magnetic induction with the rotor 11 does not occur, and therefore the coil spring 9 is not subjected to torsional stress.
前記プーリ２が外部動力を受け回動し始める初
期において前記ローター１１の慣性によりコイル
バネ９がねじれ減径を起しハブ７に巻付くことの
ないよう使用回転数に適したローター１１の慣性
の設定とコイルバネ９の捩り荷重を設定してい
る。 The inertia of the rotor 11 is set to be appropriate for the operating speed so that the coil spring 9 does not twist and reduce its diameter due to the inertia of the rotor 11 and wind around the hub 7 at the initial stage when the pulley 2 begins to rotate in response to external power. The torsional load of the coil spring 9 is set as follows.
次に、固定子１３の巻線に通電あるいは閉路状
態にした場合、前記ローター１１の回転磁界によ
り、磁気誘導が生じ、ローター１１の回転を低減
する方法の力が作用し、プーリー２の回転との間
に速度差を生じさせ、コイルバネ９の減径巻締に
より、前記ハブ７とプーリー２が連結され一体回
動する。上記連結時、プーリー２が外部動力を受
けて高速で回転している場合においてもコイルバ
ネ９の一端に係合されたローター１１と固定子１
３との磁気誘導作用でコイルバネ９の減径巻締動
作を行なつている故、従来例の如きアーマチユア
８の摩擦摺動による発生トルクで巻締を行うので
なく、巻締時に波動的衝撃の発生することも全く
ない。 Next, when the windings of the stator 13 are energized or closed, magnetic induction occurs due to the rotating magnetic field of the rotor 11, and a force is applied to reduce the rotation of the rotor 11, causing the rotation of the pulley 2 and By creating a speed difference between the hub 7 and the pulley 2, the hub 7 and the pulley 2 are connected and rotated together by tightening and reducing the diameter of the coil spring 9. During the above connection, the rotor 11 and stator 1 are engaged with one end of the coil spring 9 even when the pulley 2 is rotating at high speed due to external power.
3, the diameter of the coil spring 9 is reduced and tightened by magnetic induction, so instead of tightening by the torque generated by the frictional sliding of the armature 8 as in the conventional example, the tightening operation is performed using wave impact during tightening. It never occurs.
次に連結時の負荷変動について説明する。 Next, load fluctuations during connection will be explained.
従来例では前記コイルバネ９の一端を負荷機械
軸６に固着したハブ７に係合していたため、負荷
の変動が直接コイルバネ９の弛張につながつてい
た。本発明の実施例では前述の如くプーリー２と
ローター１１にコイルバネ９の両端を係合し固定
子１３とローター１１の磁気誘導による緩衝結合
で、従つて、外部動力の回転数と磁気誘導の強さ
によりコイルバネ９の締付力が定まり、ローター
１１の磁束の設定と固定子１３のコイルの磁気飽
和点の選択により、負荷の変動による影響は全く
なくすることができ、また、駆動側回転数の変動
に応じて固定子巻線の通電あるいは閉回路を制御
することも可能である。 In the conventional example, one end of the coil spring 9 was engaged with the hub 7 fixed to the load machine shaft 6, so that fluctuations in load directly led to the relaxation of the coil spring 9. In the embodiment of the present invention, as described above, both ends of the coil spring 9 are engaged with the pulley 2 and the rotor 11, and the stator 13 and the rotor 11 are buffered by magnetic induction. This determines the tightening force of the coil spring 9, and by setting the magnetic flux of the rotor 11 and selecting the magnetic saturation point of the coil of the stator 13, the influence of load fluctuations can be completely eliminated. It is also possible to control the energization or closed circuit of the stator winding in response to fluctuations in the stator winding.
以上の如く本発明は従来のクラツチにおける主
構成部材である良磁性材で加工されたアーマチユ
ア（可動クラツチ板）をなくし、無接触の磁気誘
導によりコイルバネを制御する方式で、負荷の変
動、脈動の影響を受けない機構を備え、アーマチ
ユアを用いた場合のヒステリシスによる不完全解
放や時間遅れがなく、従つてコイルバネの異常摺
動摩耗も発生を防止することができる。また固定
子と回転子の緩衝結合に操作電源を必要としない
ため、例えば車載用空調装置等に用いた場合、バ
ツテリーの電圧変動にともなう初期吸着の不完全
動作による摺動面の異常摩耗等が発生しない。特
にプーリー径を小さくし、大きな連結トルクを必
要とする場合に極めて顕著な効果が得られる。 As described above, the present invention eliminates the armature (movable clutch plate) made of good magnetic material, which is the main component in conventional clutches, and controls the coil spring by non-contact magnetic induction, thereby reducing load fluctuations and pulsations. Equipped with a mechanism that is not affected by the effects, there is no incomplete release or time delay due to hysteresis when an armature is used, and therefore abnormal sliding wear of the coil spring can be prevented from occurring. In addition, since no operating power supply is required for the buffer connection between the stator and rotor, when used in, for example, an automotive air conditioner, abnormal wear of the sliding surfaces due to incomplete initial adsorption due to battery voltage fluctuations may occur. Does not occur. Particularly when the pulley diameter is made small and a large coupling torque is required, a very remarkable effect can be obtained.
第１図は従来例のスプリングクラツチの断面
図、第２図は本発明の実施例によるスプリングク
ラツチの部分断面図である。
１……駆動部、２……Ｖ溝、３……電磁石、４
……軸受、５……負荷機械、６……負荷機械の
軸、７……ハブ、８……アーマチユア、９……コ
イルバネ、１０……バネガイド、１１……ロータ
ー、１２……キー、１３……固定子。
FIG. 1 is a sectional view of a conventional spring clutch, and FIG. 2 is a partial sectional view of a spring clutch according to an embodiment of the present invention. 1... Drive unit, 2... V groove, 3... Electromagnet, 4
... bearing, 5 ... load machine, 6 ... shaft of load machine, 7 ... hub, 8 ... armature, 9 ... coil spring, 10 ... spring guide, 11 ... rotor, 12 ... key, 13 ... …stator.
Claims (1)
て対向し、同固定子に対して回転自在に支持され
た回転子と、外部動力源によつて回転駆動される
駆動部と、負荷側の軸に固定されたハブと、この
ハブの外周に巻回され、一端を回転子側に、他端
を駆動部側に係止して上記回転子と駆動部との相
対的回転により上記ハブを締め付けて駆動部とハ
ブを結合するコイルバネとからなるスプリングク
ラツチに於いて、前記回転子を円周方向に分割さ
れた多極の磁極を着磁した円筒部を有する永久磁
石により構成し、前記固定子を円周方向に分割さ
れ多極を構成する巻線で構成したスプリングクラ
ツチ。 ２ 巻線を閉回路に構成した特許請求の範囲第１
項記載のスプリングクラツチ。[Claims] 1. A stator having windings, a rotor that faces the stator in close proximity and is rotatably supported with respect to the stator, and a rotor that is rotatably driven by an external power source. a hub fixed to the shaft on the load side; the hub is wound around the outer periphery of the hub, and one end is locked to the rotor side and the other end is locked to the drive side to connect the rotor and the drive unit. In a spring clutch consisting of a coil spring that tightens the hub by relative rotation with the hub and connects the drive part and the hub, a cylindrical part magnetized with multi-pole magnetic poles divided in the circumferential direction of the rotor is used. A spring clutch is constituted by a permanent magnet having a stator, and the stator is constituted by windings divided in the circumferential direction and forming multiple poles. 2 Claim 1 in which the winding is configured in a closed circuit
Spring clutch as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56070512A JPS57186626A (en) | 1981-05-11 | 1981-05-11 | Spring clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56070512A JPS57186626A (en) | 1981-05-11 | 1981-05-11 | Spring clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57186626A JPS57186626A (en) | 1982-11-17 |
| JPS6222009B2 true JPS6222009B2 (en) | 1987-05-15 |
Family
ID=13433652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56070512A Granted JPS57186626A (en) | 1981-05-11 | 1981-05-11 | Spring clutch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57186626A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57186627A (en) * | 1981-05-12 | 1982-11-17 | Matsushita Electric Ind Co Ltd | Spring clutch |
| JPS57186629A (en) * | 1981-05-12 | 1982-11-17 | Matsushita Electric Ind Co Ltd | Spring clutch |
| US4630446A (en) * | 1983-05-27 | 1986-12-23 | Sanshin Kogyo Kabushiki Kaisha | Outboard motor with turbo-charger |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5811945Y2 (en) * | 1978-03-27 | 1983-03-07 | 小倉クラツチ株式会社 | electromagnetic spring clutch |
-
1981
- 1981-05-11 JP JP56070512A patent/JPS57186626A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57186626A (en) | 1982-11-17 |
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